Kyocera TASKalfa 7002i Service Manual page 1335

C9210: DP multi-feeding sensor communication error
The DP multi-feeding sensors detect paper for 3 jobs continuously before the paper conveying starts.
Step Check description
1 Checking the connection
2 Firmware upgrade
3 Replacing the DP multi-
feeding sensors
4 Replacing the DP main
PWB
C9220: DP multi-feeding sensor backup error
1. Write data and read data does not match 3 times continuously when writing.
2. Block erase failed 3 times continuously.
3. Writing does not complete when passing 200ms after starting writing.
Step Check description
1 Checking the connection
2 Firmware upgrade
3 Replacing the DP multi-
feeding sensors
Assumed cause
The connector is not prop-
erly connected. Or, the
wire is faulty.
The firmware is not the lat-
est version.
The DP multi-feeding sen-
sors are faulty.
The DP main PWB is
faulty.
Assumed cause
The connector is not prop-
erly connected. Or, the
wire is faulty.
The firmware is not the lat-
est version.
The DP multi-feeding sen-
sors are faulty.
7-475
Measures
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire. •DP multi-feeding
sensor (emitter) - DP main
PWB • DP multi-feeding sen-
sor (receiver) - DP main PWB
Upgrade the engine firmware
and the DP firmware to the
latest version.
Replace the DP multi-feed-
ing sensor (emitter) or the DP
multi-feeding sensor
(receiver) .
Replace the DP main PWB.
Measures
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire. •DP multi-feeding
sensor (emitter) - DP main
PWB • DP multi-feeding sen-
sor (receiver) - DP main PWB
Upgrade the engine firmware
and the DP firmware to the
latest version.
Replace the DP multi-feed-
ing sensor (emitter) or the DP
multi-feeding sensor
(receiver) .
2WA/2NJ/2RK
Reference
Wiring dia-
gram
Firmware
Update
Detaching
and reat-
taching the
DP main
PWB
Reference
Wiring dia-
gram
Firmware
Update